BS EN 10222-1:2017 BSI Standards Publication Steel forgings for pressure purposes Part 1: General requirements for open die forgings BS EN 10222-1:2017 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 10222-1:2017 It supersedes BS EN 10222-1:1998, which is withdrawn The UK participation in its preparation was entrusted to Technical Committee ISE/111, Steel Castings and Forgings A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application ISBN 978 580 80523 ICS 77.140.30; 77.140.85 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2017 Amendments/corrigenda issued since publication Date Text affected BS EN 10222-1:2017 EN 10222-1 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM April 2017 ICS 77.140.30; 77.140.85 Supersedes EN 10222-1:1998 English Version Steel forgings for pressure purposes - Part 1: General requirements for open die forgings Pièces forgées en acier pour appareils pression Partie 1: Prescriptions générales concernant les pièces obtenues par forgeage libre Schmiedestücke aus Stahl für Druckbehälter - Teil 1: Allgemeine Anforderungen an Freiformschmiedestücke This European Standard was approved by CEN on 25 December 2016 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I TÉ E URO P É E N D E N O RM ALI S ATI O N E U RO P ÄI S C H E S KO M I T E E F Ü R N O RM U N G CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 10222-1:2017 E BS EN 10222-1:2017 EN 10222-1:2017 (E) Contents Page European foreword Scope Normative references Terms and definitions 4.1 4.2 Classification and designation Classification Designation 5.1 5.2 Information to be supplied by the purchaser Mandatory information Options 6.1 6.2 6.2.1 6.2.2 6.3 6.3.1 6.3.2 6.4 6.4.1 6.4.2 6.5 6.6 6.7 6.7.1 6.7.2 6.7.3 6.8 6.9 Requirements Steelmaking Manufacture of the product Hot working Forging reduction Heat treatment General Simulated post-weld heat treatment of samples Chemical composition Cast analysis Product analysis Mechanical properties 10 Weldability 10 Surface condition 10 General 10 Removal of surface defects 10 Verification of the surface condition 10 Internal soundness 11 Dimensions, shape, tolerances and nominal mass 11 7.1 7.2 Inspection 11 Types of inspection and inspection documents 11 Tests to be carried out 12 8.1 8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.1.6 8.2 Sampling 13 Selection of samples 13 General 13 Separate samples or additional forging 13 Forgings up to and including 000 kg mass (≤5 m in length) 13 Forgings from 000 kg up to and including 000 kg mass (≤5 m in length) 13 Forgings over 4000 kg or greater than m in length (any mass) 14 Forgings for closed hollow vessels 14 Preparation of samples and test pieces 14 9.1 Test methods 15 General 15 BS EN 10222-1:2017 EN 10222-1:2017 (E) 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 9.10 9.11 9.12 Chemical analysis 15 Tensile test at room temperature 15 Tensile test at elevated temperatures 16 Impact test 16 Magnetic particle testing 16 Penetrant testing 16 Ultrasonic testing 17 Resistance to intergranular corrosion 17 Hydrostatic testing 17 Dimensional measurement 17 Visual testing 17 10 10.1 10.2 Retests 17 General 17 Re-heat treatment 17 11 Marking 17 Annex A (normative) Ruling section and equivalent thickness 19 A.1 General 19 A.2 Definitions 19 A.3 Determination of the equivalent thickness 19 Annex B (informative) Example of the location of test pieces 21 Annex C (informative) Significant technical changes to the version EN 10222-1:1998 22 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2014/68/EU 23 Bibliography 24 BS EN 10222-1:2017 EN 10222-1:2017 (E) European foreword This document (EN 10222-1:2017) has been prepared by Technical Committee ECISS/TC 111 “Steel castings and forgings”, the secretariat of which is held by AFNOR This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2017, and conflicting national standards shall be withdrawn at the latest by October 2017 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN shall not be held responsible for identifying any or all such patent rights This document supersedes EN 10222-1:1998 This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2014/68/EU For relationship with EU Directive 2014/68/EU, see informative Annex ZA, which is an integral part of this document EN 10222 consists of the following parts under the general title “Steel forgings for pressure purposes”: — Part : General requirements for open die forgings — Part 2: Ferritic and martensitic steels with specified elevated temperature properties — Part 3: Nickel steels with specified low temperature properties — Part 4: Weldable fine grain steels with high proof strength — Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels Annex C provide details about significant changes to the versions EN 10222-1:1998 According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 10222-1:2017 EN 10222-1:2017 (E) Scope This Part of this European Standard specifies the general technical delivery conditions for open die steel forgings, ring rolled products and forged bars for pressure purposes NOTE Once this standard is published in the EU Official Journal (OJEU) under Directive 2014/68/EU, presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of Directive 2014/68/EU are satisfied, needs to be done The series EN 10222–1 to EN 10222 − is structured so that the data related to different materials is in the part allocated for that material The presumption of conformity to the Essential Safety Requirements of Directive 2014/68/EU depends on both the text in part and the data in part 2, 3, or General information on technical delivery conditions is given in EN 10021 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 10020:2000, Definition and classification of grades of steel EN 10021:2006, General technical delivery conditions for steel products EN 10027-1, Designation systems for steels - Part : Steel names EN 10027-2, Designation systems for steels - Part 2: Numerical system EN 10052:1993, Vocabulary of heat treatment terms for ferrous products EN 10079:2007, Definition of steel products EN 10168:2004, Steel products - Inspection documents - List of information and description EN 10204:2004, Metallic products - Types of inspection documents EN 10222-2:2017, Ferritic and martensitic steels with specified elevated temperature properties EN 10222-3:2017, Nickel steels with specified low temperature properties EN 10222-4:2017, Weldable fine grain steels with high proof strength EN 10222-5:2017, Martensitic, austenitic and austenitic-ferritic stainless steels EN 10228-1:2016, Non-destructive testing of steel forgings - Part : Magnetic particle inspection EN 10228-2:2016, Non-destructive testing of steel forgings - Part 2: Penetrant testing EN 10228-3:2016, Non-destructive testing of steel forgings - Part 3: Ultrasonic testing of ferritic or martensitic steel forgings EN 10228-4:2016, Non-destructive testing of steel forgings - Part 4: Ultrasonic testing of austenitic and austenitic-ferritic stainless steel forgings BS EN 10222-1:2017 EN 10222-1:2017 (E) EN ISO 148-1:2016, Metallic materials - Charpy pendulum impact test - Part : Test method (ISO 48-1 :2016) Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2013, Corrected version 2015-06-01) EN ISO 377:2013, EN ISO 3651-2:1998, Determination of resistance to intergranular corrosion of stainless steels - Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels - Corrosion test in media containing sulfuric acid (ISO 3651 -2:1 998) EN ISO 6892-1:2016, Metallic materials - Tensile testing - Part : Method of test at room temperature (ISO EN ISO 6892-2:2011, Metallic materials - Tensile testing - Part 2: Method of test at elevated temperature (ISO EN ISO 9606-1:2013, Qualification testing of welders - Fusion welding - Part : Steels (ISO 9606-1 :2012 6892-1 :201 6) 6892-2:201 ) including Cor :2012) EN ISO 14284:2002, Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 4284:1996) EN ISO 15607:2003, (ISO 5607:2003) Specification and qualification of welding procedures for metallic materials - General rules Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part : Arc welding (ISO 15609-1 :2004) EN ISO 15609-1:2004, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part : Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 1561 41:2004) EN ISO 15614-1:2004, Terms and definitions For the purposes of this document, the terms and definitions given in EN 10020:2000, EN 10021:2006, EN 10052:1993, EN 10079:2007 and the following apply 3.1 batch forgings of similar dimensions from the same cast, made by the same forging procedure and from the same heat treatment charge 3.2 purchaser person or organization that orders products in accordance with this European Standard Note to entry The purchaser is not necessarily, but may be, a manufacturer of pressure equipment in accordance with the EU Directive listed in Annex ZA Note to entry Where a purchaser has responsibilities under this EU Directive, this standard will provide a presumption of conformity with the essential requirements of the Directive so identified in Annex ZA BS EN 10222-1:2017 EN 10222-1:2017 (E) Classification and designation 4.1 Classification The classification of the steel grades in accordance with EN 10020 is given in the specific parts of the EN 10222 series 4.2 Designation The steel grades specified in the individual parts of the EN 10222 series are designated with steel names and steel numbers The steel names have been allocated in accordance with EN 10027-1 The corresponding steel numbers have been allocated in accordance with EN 10027-2 Information to be supplied by the purchaser 5.1 Mandatory information The following information shall be supplied by the purchaser at the time of enquiry and order: a) the quantity of forgings required; b) the forging dimensions, or the drawing number(s) containing the dimensions, tolerances on dimensions, shape and surface finish, to which the forgings shall conform; c) number of the relevant part of this European Standard; d) steel name or steel number of the material of which the forgings are made (see Clause 4); e) delivery condition, where alternatives are possible or where it differs from those specified in the other parts of the EN 10222 series; f) the type of inspection document in accordance with EN 10204:2004 (see 7.1.1); g) the extent of dimensional inspection and visual testing for batches including more than 25 pieces 5.2 Options A number of options are specified in this part of the EN 10222 series and listed below If the purchaser does not indicate a wish to implement any of these options at the time of enquiry and order, the products shall be supplied in accordance with the basic specification (see 5.1) 1) Steelmaking process (see 6.1.1); 2) Hot working process and degree of hot working (see 6.2.1); 3) Information on the forging procedure and the calculated forging reduction (see 6.2.2); 4) Limits on residual incidental elements other than those specified in the relevant part of the EN 10222 series (see 6.4.1.3 and 6.4.1.4); 5) maximum carbon equivalent value for steel grades of EN 10222-2 and EN 10222-4 (see 6.4.1.5); 6) greater tolerances to chemical composition (see 6.4.2.2); 7) content of residual elements (see 6.4.2.3); BS EN 10222-1:2017 EN 10222-1:2017 (E) 8) magnetic particle testing and/or penetrant testing (see 6.7, Table 1, 9.6 and 9.7); 9) requirements and test conditions for the ultrasonic test (see 6.8, Table 1, and 9.8); 10) optional tests (see Table 1); 11) deviating test unit (see 8.1.1 and/or 8.1.4); 12) test temperature for the tensile test at elevated temperature (see 9.4); 13) deviating test temperature for the impact test (see 9.5, paragraph 2); 14) deviating of direction of test pieces for impact test (see 9.5, paragraph 4); 15) deviating extent of testing and test duration for the hydrostatic test (see 9.10); 16) simulated post-weld heat treatment of samples (see 6.3.2); 17) verification of the surface condition (see 6.7.3); 18) sample location for complex pieces (see 8.1.5); 19) if applicable, lowered number of the test units of a batch or part of a batch (of final product) (see Table 2, footnote a); 20) optional impact test for austenitic stainless steels according to EN 10222-5 (see Table 1) Requirements 6.1 Steelmaking 6.1.1 The steel shall be produced by an electric process or one of the basic oxygen processes Specific requirements for the steelmaking process may be agreed at the time of the enquiry and order 6.1.2 The steel shall be fully killed 6.2 Manufacture of the product 6.2.1 Hot working The choice of hot working process shall be at the discretion of the manufacturer For the hot working process and/or the degree of hot working, special agreements may be made at the time of the enquiry and order 6.2.2 Forging reduction The forging shall receive a sufficient forging reduction to completely consolidate the forging and remove the cast structure Information on the forging procedure, on the calculated forging reduction and the rules for calculating this ratio may be agreed at the time of enquiry and order BS EN 10222-1:2017 EN 10222-1:2017 (E) C70 steelmaking process; C71-C92 cast analysis and, if applicable, product analysis (including residual element content, where specified); D01 marking, dimensional and visual inspection and, if applicable, verification of the resistance to intergranular corrosion; D02-D50 non-destructive tests (NDT), if applicable; Z validation 7.2 Tests to be carried out The mandatory and optional tests to be carried out, and the extent of testing are specified in Table Table — Type of tests and extent of testing Type of inspection and test Mandatory tests Extent of testing Cast analysis per cast 6.4.1 Tensile test at room temperature per test unit 7.2.1, 8.2.2 and 9.3 Impact test (by agreement at time of enquiry and order the testing of impact properties may be optional per test unit for austenitic stainless steels according to EN 10222– 5, see 5.2 Option 20) 7.2.1, 8.2.2 and 9.5 Dimensional inspection each productc 6.9 and 9.11 Visual testing each productc 6.7.2 and 9.12 Product analysis per cast 6.4.2, 7.2.1 and 9.2 Tensile test for (simultaneous) verification of one, all, or any combination of Rp0,2 , Rp1,0 and Rm at elevated per test unitb temperature Optional tests 8.2.2 and 9.4 Additional impact test at different temperatures a 7.2.1, 8.2.2 and 9.5 Magnetic particle testing a 6.7.3 and 9.6 Penetrant testing a 6.7.3 and 9.7 Ultrasonic testing soundness for verification of internal a Test for resistance to intergranular corrosion for a steels of EN 10222–5 Hydrostatic test for hollow sections each productb a As agreed b Unless otherwise agreed c For batches greater as 25 pieces, the extent of inspection shall be agreed at time of enquiry and order 12 Refer to 6.8 and 9.8 9.9 9.10 BS EN 10222-1:2017 EN 10222-1:2017 (E) 7.2.1 Test units consist of forgings up to the maximum masses given in Table Forgings greater than those unit masses shall be sampled individually The minimum number of samples shall be in accordance with 8.1 according to the mass and/or size of the forging Table — Maximum test masses Non-alloy steels according to Maximum test mass of EN 10222–2 All steels according to EN 10222–4 Other steels EN 10222–5 [kg] Austenitic steels according to [kg] Final individual product 000 500 Batch or part of a batch (of final product) a 000 000 a If agreed at time of enquiry and order the maximum number of test units of a batch may be lowered according to the application (see 5.2, Option 19) Sampling 8.1 Selection of samples 8.1.1 General Samples shall be provided by one of the following methods: a) for small forgings (up to 000 kg), if so agreed with the purchaser, as separately forged samples forged from the bars, billets or ingots from which the forgings have been made The samples shall receive nominally the same hot working reduction and have nominally the same equivalent diameter as the ruling section of the forgings they represent, as defined in Annex A; b) for prolongations of the forgings having a diameter or section approximately equal to the ruling section of the forging at the time of heat treatment (see Annex A) Integral samples shall not be parted from the forging until all heat treatments are completed except as in 8.1.6; c) from additional forgings 8.1.2 Separate samples or additional forging Separate samples or additional forgings shall be heat treated with the batch they represent 8.1.3 Forgings up to and including 000 kg mass (≤5 m in length) For forgings up to and including 000 kg mass, samples shall be provided according to 8.1.1 a), b) or c) 8.1.4 Forgings from 000 kg up to and including 000 kg mass (≤5 m in length) For forgings from 000 kg up to and including 000 kg, samples shall be provided according to method 8.1.1 b) or c) A sample shall be taken from one end of each forging 13 BS EN 10222-1:2017 EN 10222-1:2017 (E) 8.1.5 Forgings over 4000 kg or greater than m in length (any mass) For forgings over 4000 kg or greater than m in length (any mass), samples shall be provided according to method 8.1.1 b) or c) A sample shall be taken from each end of each forging in two diametrically opposite areas For forgings whose diameter exceeds the length of the axis, such as discs or rings, test samples shall be provided by increasing the outside diameter, length or thickness of the forgings or by reducing the inside diameter of the forgings, as applicable NOTE order For shapes needing clarifications to the sample location, agreements can be made at time of enquiry and Examples of the mounting of prolongation and the location of test pieces are given in Annex B 8.1.6 Forgings for closed hollow vessels In the case of forgings for closed hollow vessels, the samples shall be cut off before closing (i.e either by hot working or welding on ends) and shall be subjected to the same heat treatment as the vessels themselves In the case of open hollow vessels a sample shall be cut off after completion of the heat treatment The number of samples taken from these forgings shall conform to the relevant requirements of 8.1.3, 8.1.4 and 8.1.5 8.2 Preparation of samples and test pieces 8.2.1 Sample preparation shall be in accordance with the requirements of EN ISO 377:2013 and EN ISO 14284:2002 Samples for the chemical analysis shall be taken either from the test pieces used for the verification of the mechanical properties or from drillings from the same location Deviating locations shall be agreed between purchaser and manufacturer, as shall also the permissible deviations in the product analysis, taking into account the heterogeneity of the product In addition, the requirements in 8.2.2 shall apply for sampling and sample preparation for the mechanical tests 8.2.2 For forgings with t ≥ 60 mm, the samples, as in Figure 1, shall be taken so that the axis of the test pieces shall be at a distance of t/4 from the heat treated surface (with a minimum of 20 mm and a maximum of 80 mm), and t/2 from the end (where t is the equivalent thickness teq or the thickness of the ruling section tR of the forging at the time of heat treatment, see Annex A) Figure — Position of test piece 14 BS EN 10222-1:2017 EN 10222-1:2017 (E) For forgings with t < 60 mm the samples shall be taken close to the heat treated surface For integral samples according to 8.1.1 b, the end of the forging shall be protected by means of a thermal buffer, the height of which shall be at least equal to t/2 (maximum 90 mm) This thermal buffer, the width of which shall at least equal t, shall be welded to the part before heat treatment The direction of test pieces shall be: — Circular or rectangular cross section, teq < 160mm: axial; — Circular or rectangular cross section, teq ≥ 160mm: transverse to main forging direction; — Ring and discs, all dimensions: tangential; — Hollow sections, teq < 16mm: axial; — Hollow sections, teq ≥ 16mm: tangential For other profiles and if requested by the purchaser at the time of enquiry and order, additional test pieces shall be prepared for different directions and positions From each sample the following test pieces shall be prepared: a) one (room temperature) tensile test piece which shall be of type and dimensions complying with the requirements of EN ISO 6892-1:2016; b) three impact test pieces as specified in EN ISO 148-1:2016 The axis of the notch shall be perpendicular to the nearest surface of the forging; c) if an elevated temperature tensile test is required, the test piece shall be cut from a position on the sample adjacent to one of the room temperature tensile test pieces, and prepared in accordance with the requirements of EN ISO 6892-2:2011 Test methods 9.1 General The manufacturer shall take suitable measures to prevent materials becoming mixed up and to ensure traceability 9.2 Chemical analysis Unless otherwise agreed at the time of enquiry and order, the choice of a suitable physical or chemical analytical method for the product analysis shall be at the discretion of the manufacturer In cases of dispute, the analysis shall be carried out by a laboratory approved by both parties In this case, the analysis method to be used shall be agreed taking into account the relevant existing European Standards The list of available European Standards is given in CEN/TR 10261 For the product analysis, unless otherwise agreed at the time of enquiry and order, one test piece per cast shall be taken for determining the elements indicated with numerical values for the particular steel grade in the relevant tables of the specific parts of the EN 10222 series 9.3 Tensile test at room temperature Tensile test at room temperature shall be carried out in accordance with the requirements of EN ISO 6892-1:2016 The yield strength to be determined shall be the upper yield strength (ReH ) or if this is 15 BS EN 10222-1:2017 EN 10222-1:2017 (E) not pronounced, the 0,2 % proof strength (Rp0,2 ); for austenitic steels in accordance with EN 10222-5 additionally Rp1,0 9.4 Tensile test at elevated temperatures Rp0,2 , Rm values and for austenitic steels in accordance with EN 10222-5 additionally Rp1,0 values at elevated temperature shall be determined in accordance with EN ISO 6892-2:2011 Unless a test temperature for which a value is specified for the relevant product has been agreed at the time of enquiry and order, the test shall be carried out at 300 °C except for austenitic-ferritic steels of EN 10222-5 for which the test shall be carried out at 250 °C 9.5 Impact test The impact test shall be carried out in accordance with EN ISO 148-1:2016 at 20°C (unless otherwise agreed), on V-notched test pieces and by using a mm striker (KV2 ) The specifications of the individual parts of the EN 10222 series shall apply Where minimum impact energy values are specified for several temperatures, verification of the impact energy, unless otherwise agreed at the time of enquiry and order, shall be carried out at the temperature for which the value of 27 J is specified Where the minimum impact energy value specified at the lowest temperature is higher than 27 J, this higher value shall be verified Unless otherwise agreed at the time of enquiry and order, the impact energy values shall be verified for test pieces taken in accordance with 8.2.2 The minimum impact values given in the individual parts of the EN 10222 series apply for the mean of three test pieces One individual value may be lower than the specified value provided that it is not less than 70 % of this value If the above conditions are not met, an additional set of three test pieces shall be taken from the same sample and shall be tested In order to regard the test unit as acceptable after testing the second set, the following requirements shall be met: a) mean value of six tests shall be equal to or greater than the specified value; b) not more than two of the six individual values shall be less than the specified value; c) not more than one of the six individual values shall be less than 70 % of the specified value If these requirements are not met, the sample product shall be rejected and re-tests shall be carried out on the remainder of the test unit 9.6 Magnetic particle testing In case of magnetic particle testing, the test shall be carried out in accordance with EN 10228-1:2016 The acceptance criteria shall be agreed at the time of enquiry and order The quantity of forgings tested shall be a statistically controlled sample or 100 % as agreed between purchaser and supplier 9.7 Penetrant testing In case of penetrant testing, the test shall be carried out in accordance with EN 10228-2:2016 The acceptance criteria shall be agreed at the time of the enquiry and order The quantity of forgings tested shall be a statistically controlled sample or 100 % as agreed between purchaser and supplier 16 BS EN 10222-1:2017 EN 10222-1:2017 (E) 9.8 Ultrasonic testing In case of ultrasonic testing, the test shall be carried out in accordance with EN 10228-3:2016 or EN 10228-4:2016 The acceptance criteria shall be agreed at the time of enquiry and order The quantity of forgings tested shall be a statistically controlled sample or 100 % as agreed between purchaser and supplier 9.9 Resistance to intergranular corrosion Intergranular corrosion testing shall be carried out in accordance with EN ISO 3651-2:1998, unless otherwise specified in the order 9.10 Hydrostatic testing Every forging shall be tested, unless otherwise agreed between the purchaser and the manufacturer Details of the test procedure, including the test temperature and pressure shall be agreed between the purchaser and manufacturer In no case shall the nominal strength produced by the hydrostatic test exceed 90 % of the specified minimum yield strength ReH of the steel or where the steel does not exhibit a pronounced yield point, 90 % of the 0,2 % proof strength Rp0,2 The test pressure shall be maintained for a time to be agreed between the purchaser and manufacturer 9.11 Dimensional measurement The dimensions of the products shall be checked for conformity with 6.9 9.12 Visual testing The surface condition of the products shall be checked for conformity with 6.7, by visual testing without optical aids NOTE Other surface control methods can be agreed between the purchaser and manufacturer 10 Retests 10.1 General Retests shall be carried out in accordance with EN 10021:2006 10.2 Re-heat treatment The manufacturer shall have the right to repeat the heat treatment of any material, including material already found not to fulfil the test requirements, and resubmit it for testing No forging shall be fully re-heat treated more than twice 11 Marking 11.1 Unless otherwise agreed, each forging, or batch of forgings, as appropriate, shall be legibly marked to show: a) the manufacturer's name or trade mark; b) the identification reference numbers of other identification marks by which the forgings can be related to the manufacturer's certificate; c) the mark of the inspection representative, if required (see Clause 7) 17 BS EN 10222-1:2017 EN 10222-1:2017 (E) 11.2 The mark shall be placed in the area indicated on the forging drawing, or at the discretion of the supplier, if not shown on the forging drawing 11.3 If stamping is not permissible the mark shall be made by using a permanent paint, neutral with regard to the steel to which it is applied Any restriction regarding the composition shall be specified by the purchaser at the time of enquiry and order NOTE In the choice of paints, legal requirements of CEC or national countries can be taken into account 11.4 For small forgings that are boxed, the information required by 11.1 may be marked on the box, or on a tag securely attached to the box, in which the forgings are shipped In these cases also suitable measures shall be taken in order to prevent materials becoming mixed up 18 BS EN 10222-1:2017 EN 10222-1:2017 (E) Annex A (normative) Ruling section and equivalent thickness A.1 General This annex covers definitions for the term “Ruling section” (tR) and “equivalent thickness” (teq) and describes methods for the determination of teq A.2 Definitions A.2.1 Ruling section (tR) The section for which the mechanical properties are specified A.2.2 Equivalent thickness (teq) That thickness of a section of a shape X for which the same properties as for the thickness tR of the ruling section can be expected when the same heat treatment, sampling and testing conditions are applied A.3 Determination of the equivalent thickness A.3.1 Thicknesses equivalent to the thicknesses given in the tables for the mechanical properties in the relevant Parts of this European Standard shall, unless otherwise agreed at the time of the enquiry and order, be read off from Table A.1 (see A.3.2) A.3.2 If for the shape of the section of the ordered product no equivalent thicknesses are given in Table A.1, the thickness of the ruling section ranges stated in the relevant part of this European Standard which is applicable for the relevant section shall be agreed at the time of the enquiry and order 19 BS EN 10222-1:2017 EN 10222-1:2017 (E) Table A.1 — Equivalent thickness for sections of shapes different from the ruling section a Thickness tR of ruling section Equivalent thickness teq in mm for Bar Circular cross section b t R l ≥ 2; t Disc Cylindrical hollow section, both ends open Rectangular cross section Cylindrical hollow section Open end closed Both ends closed ≥ R b ≤ t teq approximately 1,5 tR a Ring teq ≤ Do Di eq ≈1,2 tR h – D i ≥ teq teq ≈ tR > t eq > 200 mm teq approximately tR Other sections Di > 200 mm teq Di ≥ 80 mm ≤ 200 mm teq Di < 80 mm teq approximately approximately approximately tR 0,85 tR 0,75 tR teq ≈0,6 tR 16 25 20 16 16 16 15 12 10 35 50 40 35 35 35 30 25 20 50 75 60 50 50 50 40 35 30 70 100 80 70 70 70 55 50 40 100 150 120 100 100 100 85 75 60 130 200 160 130 130 130 115 100 80 160 250 200 160 160 160 140 125 100 200 300 250 200 200 200 170 150 120 250 375 300 250 250 250 210 180 150 330 500 400 330 330 330 280 250 200 400 600 480 400 400 400 340 300 240 500 750 600 500 500 500 425 375 300 By agreement (see A.3.2) Indicated are the thickness values in the tables for mechanical properties in EN 1022 2–2 to EN 10222–5 for the ruling section, i.e regular cross section with a width to thickness ratio of ≥ and a length to thickness ratio of ≥ 4; both values are used together 20 BS EN 10222-1:2017 EN 10222-1:2017 (E) Annex B (informative) Example of the location of test pieces a) One sample per sample product to be taken NOTE b) Two samples per sample product to be taken The examples for rings apply also for discs Key d Diameter mounting e Earlike mounting f Front side mounting x Test piece position Figure B.1 — Examples of the mounting of prolongation and of the location of test pieces 21 BS EN 10222-1:2017 EN 10222-1:2017 (E) Annex C (informative) Significant technical changes to the version EN 10222-1:1998 Some significant changes to the previous version of EN 10222-1:1998 are listed below: 1) Updating of the normative references; 2) The definition of “purchaser” in chapter has been aligned with Annex ZA; 3) The classification and steel designation in chapter have been updated; 4) Updating of the mandatory and optional information; 5) The contents of the previous Annex A have been updated and inserted in the new structure of the standard; 6) The statements for properties, testing, test methods and sampling have been technical changed (e.g chapter 6, Table and 2); 7) Inspection requirements in chapter actualized; 8) The previous Annex B become Annex A; 9) New Annex B “Example of the location of test pieces” added 22 BS EN 10222-1:2017 EN 10222-1:2017 (E) Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2014/68/EU This European Standard has been prepared under a Commission’s standardization request M/071 to provide one voluntary means of conforming to Essential Requirements of Directive 2014/68/EU Once this standard is cited in the Official Journal of the European Union under that Directive, compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption of conformity with the corresponding Essential Requirements of Directive 2014/68/EU, and associated EFTA regulations Table ZA.1 — Correspondence between this European Standard and Annex I of Directive 2014/68/EU Requirements of Directive 2014/68/EU Clause(s)/subclause(s) of this EN Remarks/Notes 4.1 a 6.5 Appropriate material properties 4.1 d 6.3, 6.7.1, 6.8 Suitable for the processing procedures 4.3 7.1 Inspection documentation WARNING — Presumption of conformity stays valid only as long as a reference to this European Standard is maintained in the list published in the Official Journal of the European Union Users of this standard should consult frequently the latest list published in the Official Journal of the European Union WARNING — Other Union legislation may be applicable to the product(s) falling within the scope of this standard 23 BS EN 10222-1:2017 EN 10222-1:2017 (E) Bibliography [1] Guidelines 7/2 (1999-01-29/2006-03-31) and 7/16 (2001-10-19/1999-01-29/2006-03-31) to the Directive 97/23/EC, published by EU Commission’s Working Group “Pressure”, see web-site of the EU Commission http://ec.europa.eu/growth/sectors/pressure-gas [2] CEN/TR 10261, Iron and steel - European standards for the determination of chemical composition 24 This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS 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